SIMBAD references

2020ApJS..247...44A - Astrophys. J., Suppl. Ser., 247, 44-44 (2020/April-0)

Long-period high-amplitude red variables in the KELT survey.

ARNOLD R.A., McSWAIN M.V., PEPPER J., WHITELOCK P.A., HERNITSCHEK N., JAMES D.J., KUHN R.B., LUND M.B., RODRIGUEZ J.E., SIVERD R.J. and STASSUN K.G.

Abstract (from CDS):

We present a sample of 4132 Mira-like variables (red variables with long periods and high amplitudes) in the Kilodegree Extremely Little Telescope (KELT) survey. Of these, 376 are new Mira-like detections. We used Two Micron All Sky Survey (2MASS) colors to identify candidate asymptotic giant branch stars. We searched for photometric variability among the candidate asymptotic giant branch stars and identified stars that show periodic variability. We selected variables with high amplitudes and strong periodic behavior using a Random Forest classifier. Of the sample of 4132 Mira-like variables, we estimate that 70% are Miras and 30% are semiregular (SR) variables. We also adopt the method of using (WRP-WKs_) versus (J-Ks) colors in distinguishing between O-rich and C-rich Miras and find it to be an improvement over 2MASS colors.

Abstract Copyright: © 2020. The American Astronomical Society. All rights reserved.

Journal keyword(s): Mira variable stars - Long period variable stars - Time series analysis

VizieR on-line data: <Available at CDS (J/ApJS/247/44): table2.dat lc/*>

Simbad objects: 3874

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2023.01.27-01:23:28

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